I have mine fused at 10 amps and it works fine for the electronic stuff (we don't smoke so we don't need to use the lighter). The fuse is there to protect the wiring only, not the devices...
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD